Hmm, the update rate is automatically set to the display's refresh rate in the latest beta, so it should always be smooth.Funkybot's Evil Twin wrote: Thu Nov 24, 2022 4:57 pm Happens on various plugin formats (tried Clap and VST2) and using the latest Reaper but note: trying in Studio One results in smooth movements. Not sure if this is a U-he thing or a Reaper thing.
One idea, what's your buffer size in Reaper, is it really high?
If so, can you try a lower buffer size?
Another idea, I've once noticed some GUI issue on my Intel MBP (could not reproduce on my M1 MBP though).
There was a problem with period stuttering, i.e. once every second the plugin UI update stopped for just a short moment. After lots and lots of testing I found out it happens only if the plugin's UI is covering the Reaper arrangement section completely. If moved just a tiny bit to keep some of Reaper's arangement visible, the issue stopped. Since we could not find a reason for this, we suspect it might be something to do with the graphics rendering of Reaper.
But not sure what kind of issue you experience exactly, so this might be unrelated.

